Improvement in attachments to windmills



J. SMITH.-

ATTACHMENTS r0 WIND-MILLS."

No.187,058. Patented Feb. 6, 1877.

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ATTORNEY.

MPETES, PHDTO-LITHOGRAPHE-R WASHINGTON. D. (1

UNITED STATES PATENT OFFICE.

JOHN SMITH, OF HORIGON, WISCONSIN.

IMPROVEMENT lN ATTACHMENTS TO WINDMILLS.

Specification forming part of Letters Patent No. 187,058, dated February6, I877; application filed December 9, 1876.

To all whom it may concern:

Be it known that I,-JOHN SMITH, of Horicon, in the county of Dodge andState of Wisconsin, have invented certain new and useful Improvements inAttachments to Windmills; and I do hereby declare that the following isa full, clear, and exact description thereof, that will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

The same letters and figures of reference are used to indicate thecorresponding parts.

After describing the invention, its nature and extent will be shown inthe claims.

Figure 1 is a side view, and Fig. 2 is an end view, of my invention.

A is the platform, on which rests the upright B, which is provided withthe turn-table b. O is a swinging arm, provided with two uprightbearings, in which the shaft D rotates. To one end of the shaft D isattached the wind-wheel E. The arm 0 is provided with the flange c,which rotates in the turntable b. One end of the shaft D is providedwith the wheel F. At the point h in the wheel F is attached the compoundcrank i. The pitman g is provided with a slot at its upper end, throughwhich one end of the compound crank 73 passes, and the other end of thecrank has a bearing in the pitman e. The pitman g is firmly fastened tothe horizontally-- revolving disk H. The disk H is provided with theprojecting arms I l, which are bent to clasp the crown-flange of theturn-table d, to which is firmly attached the pitman d.

The pitman c has a swivel-joint at the point f. The wheel F and thelower end of the pitman 6 are provided with bearings for the compoundcrank i, in the same manner as at F and the top of the pitman e.

In ordinary windmills the wind-wheel is so constructed that it may beinclined or turned edgewise to avoid the force of a violent wind. Withmy invention nothing of this kind is required. The shaft 0 may be turnedso as to completely move the wind-wheel out of the force of the wind,and not change the relative situation of the wind-wheel to the shaft 0,on which it revolves. The pitmen e e and g d are so arranged andconstructed that there is no friction and no loss of power in whateverposition the wind-wheel is placed. The pitmen are also so arranged thatwhen one of them is at the dead-point in the revolution of the wheels'FF, the other pitman has its bearing in a position at an angle to thedeadpoint. Thus, the power communicated to the wind-wheel is regular anduniform.

When the wind is too violent the shaft 0 is turned out of the wind, asmay be desired.

The lower part of the pitman 0 remains in a fixed position, while theupper part turns at the swivel-joint f. The cap or disk H turns, withthe pitman g, on the turn-table d.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. The shaft D, provided with the wheel F, having bearings on theturn-table, provided with the arm 0, in combination with the compoundcrank z, the pitmen e c and g d, the turn-table H, provided with thelips l I, clasping the crown of the disk 01, all so constructed andarranged that the wind-wheel E may be turned to any point of the compassand allow the pitmen e e and g d to operate equally well, allsubstantially as described, and for the purposes set forth.

2. The wheel F, the compound crank i, attached thereto, the pitman e 0,provided with the swivel f, and the pitman (1, provided with the disk01, in combination with the turn-table EI and the pitman g, the compoundcrank z', the wheel F, all so constructed and arranged that while onepitman is at its deadpoint in the revolution of the wheel, the otherpitman shall have passed its dead-point, all substantially as described,and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of October, 1876.

JOHN SMITH. Witnesses:

J. B. HAYS, S. H. PALMER.

